[Resolved] /scratch and /data are back online following weekend maintenance
Jan. 24, 2019—Update, 2/12/2019: /scratch and /data are back online and we are now accepting new jobs. We were never able to get the maintenance command to run successfully, but we were able to verify (with IBM’s assistance) the integrity of /scratch and /data, which is great news and means we will not need to take another...
Final Steps for CentOS 7 Upgrade
Jan. 10, 2019—Update, Jan 25: The CentOS 6 login is now closed. Original post below… It has been a long journey, but we are almost to the end! Please see below for a schedule of the final systems to be upgraded to CentOS 7. Note this schedule does not include a handful of custom/private gateways that still...
Adding Disk Space to /scratch and /data
Jan. 2, 2019—Beginning at noon today we will be adding a few hundred TB of additional disk space to our gpfs23 filesystem (which includes /scratch and /data). It is possible that this may cause some sluggishness on the cluster for an hour or so. Tonight we will then kick off a migration to redistribute data to these...
[Resolved] Full cluster downtime on Wednesday, Dec 19 starting at 6am; make sure to log out and halt any running processes before downtime starts
Dec. 10, 2018—Update, 12/20/2018: The GPU drivers upgrade on all Maxwell and Pascal nodes in the CentOS 7 cluster is now complete and the nodes are available to host jobs. Thank you for your patience. Update, 12/19/2018: The cluster is now back online and accessible for normal use again, with the exception of the GPU nodes. We...
GPU Nodes Available for Testing in CentOS 7 Environment
Nov. 29, 2018—GPU nodes are now available for testing in the CentOS 7 environment. We have 5 nodes available in the pascal partition and 2 nodes available in the maxwell partition, so for now, please limit your jobs to short tests to verify that your application functions correctly. Please continue running your production jobs in the CentOS...
Introducing the ACCRE Visualization Portal
Nov. 29, 2018—The ACCRE Visualization Portal is a new graphical interface to the ACCRE cluster powered by Open OnDemand. This interface allows users to access all cluster resources conveniently through modern web browsers, and provides the ability to create virtual desktop jobs that create a temporary desktop environment within the cluster on a compute node for interactive...
Welcome SC18 Attendees!
Nov. 9, 2018—We would like to welcome our fellow attendees of Supercomputing 2018 in Dallas, TX to our site. This page contains our presentation schedule as well as all our posters, presentation slides, relevant links, source code, and presenter bios. We will be in booth 3907 all week.
[Resolved] Problems with GPFS; logins and jobs may be affected
Nov. 7, 2018—Update, 3pm: /home is back online. Please check your jobs’ output very carefully as it is likely that many will need to be re-run, especially if they were performing I/O to or from /home. Jobs performing I/O to /scratch, /data, or /dors may have survived. Please open a helpdesk ticket with us if you have...
11/30/2018: Basics of Python Performance and Multithreading with Eric Appelt
Oct. 31, 2018—Audio for Eric Appelt’s talk: Our next Pizza and Programming Seminar will be held on Friday, Nov 30 beginning at 1:15pm in Stevenson Center 5326. Eric Appelt, Sr Sys Admin at ACCRE, will be leading an interactive seminar on the inner workings of Python. An abstract is included below. You can register for the...
[Resolved] Cluster unresponsive or sluggish for some users
Oct. 18, 2018—Update, 2:30pm: All clear – if you notice anything usual, submit a helpdesk ticket as always. We’re receiving reports from users this morning about the cluster being unresponsive or sluggish. We are investigating the issue and will have an update soon. Thanks!